<!DOCTYPE html>
<html>

	<head>
		<meta charset="UTF-8">
		<title>使用对象控制画布上的元素</title>
		<style>
            #canvas{
                display: block;
                margin: 20px  auto;
                background: linear-gradient(-180deg, #040024 0%, #07165C 97%);
            }

		</style>
	</head>

	<body>
        
		<canvas id="canvas" width="700" height="600"></canvas>
        <script src="js/planeImg.js"></script>
	</body>

</html>